Trying to determine if 2008 Subaru has either replacement transmission or engine

[jerbir]

My 2008 Subaru Outback Sport has been involved in a wreck and likely needs to be totalled. CarFax does not show a transmission or engine replacement but I bought it having been told one was replaced. The VIN is  4S4BP61C287310455. I think I found the transmission sticker itself so the first thing is "is this the transmission tag". I have attached the sticker. I have spent many hours trying to decode and just overwhelmed. There wasa another similar sticker about two inches away with no writing left that I can see..

I am trying to prove this is a replacement from the original transmission. I am going to go back tomorrow to the salvage yard and look on the passenger side door and just trying to do everything I can to prove this. Does anyone have any advice?